<template>
    <el-form>
        <el-form-item>
            <el-radio v-model='radioValue' :label="1">
                周，允许的通配符[, - * ? / L #]
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="2">
                不指定
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="3">
                周期从
                <el-select clearable v-model="cycle01">
                    <el-option
                            v-for="(item,index) of weekList"
                            :key="index"
                            :label="item.value"
                            :value="item.key"
                            :disabled="item.key === 7"
                    >{{item.value}}
                    </el-option>
                </el-select>
                -
                <el-select clearable v-model="cycle02">
                    <el-option
                            v-for="(item,index) of weekList"
                            :key="index"
                            :label="item.value"
                            :value="item.key"
                            :disabled="item.key <= cycle01"
                    >{{item.value}}
                    </el-option>
                </el-select>
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="4">
                第
                <el-input-number v-model='average01' :min="1" :max="4"/>
                周的
                <el-select clearable v-model="average02">
                    <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key"/>
                </el-select>
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="5">
                本月最后一个
                <el-select clearable v-model="weekday">
                    <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key"/>
                </el-select>
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model='radioValue' :label="6">
                指定
                <el-select class="multiselect" clearable v-model="checkboxList" placeholder="可多选" multiple
                           :multiple-limit="6">
                    <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key"/>
                </el-select>
            </el-radio>
        </el-form-item>

    </el-form>
</template>

<script setup>
    const emit = defineEmits(['update'])
    const props = defineProps({
        cron: {
            type: Object,
            default: {
                second: "*",
                min: "*",
                hour: "*",
                day: "*",
                month: "*",
                week: "?",
                year: ""
            }
        },
        check: {
            type: Function,
            default: () => {
            }
        }
    })
    const radioValue = ref(2)
    const cycle01 = ref(2)
    const cycle02 = ref(3)
    const average01 = ref(1)
    const average02 = ref(2)
    const weekday = ref(2)
    const checkboxList = ref([])
    const checkCopy = ref([2])
    const weekList = ref([
        {key: 1, value: '星期日'},
        {key: 2, value: '星期一'},
        {key: 3, value: '星期二'},
        {key: 4, value: '星期三'},
        {key: 5, value: '星期四'},
        {key: 6, value: '星期五'},
        {key: 7, value: '星期六'}
    ])
    const cycleTotal = computed(() => {
        cycle01.value = props.check(cycle01.value, 1, 6)
        cycle02.value = props.check(cycle02.value, cycle01.value + 1, 7)
        return cycle01.value + '-' + cycle02.value
    })
    const averageTotal = computed(() => {
        average01.value = props.check(average01.value, 1, 4)
        average02.value = props.check(average02.value, 1, 7)
        return average02.value + '#' + average01.value
    })
    const weekdayTotal = computed(() => {
        weekday.value = props.check(weekday.value, 1, 7)
        return weekday.value + 'L'
    })
    const checkboxString = computed(() => {
        return checkboxList.value.join(',')
    })
    watch(() => props.cron.week, value => changeRadioValue(value))
    watch([radioValue, cycleTotal, averageTotal, weekdayTotal, checkboxString], () => onRadioChange())

    function changeRadioValue(value) {
        if (value === "*") {
            radioValue.value = 1
        } else if (value === "?") {
            radioValue.value = 2
        } else if (value.indexOf("-") > -1) {
            const indexArr = value.split('-')
            cycle01.value = Number(indexArr[0])
            cycle02.value = Number(indexArr[1])
            radioValue.value = 3
        } else if (value.indexOf("#") > -1) {
            const indexArr = value.split('#')
            average01.value = Number(indexArr[1])
            average02.value = Number(indexArr[0])
            radioValue.value = 4
        } else if (value.indexOf("L") > -1) {
            const indexArr = value.split("L")
            weekday.value = Number(indexArr[0])
            radioValue.value = 5
        } else {
            checkboxList.value = [...new Set(value.split(',').map(item => Number(item)))]
            radioValue.value = 6
        }
    }

    function onRadioChange() {
        if (radioValue.value === 2 && props.cron.day === '?') {
            emit('update', 'day', '*', 'week')
        }
        if (radioValue.value !== 2 && props.cron.day !== '?') {
            emit('update', 'day', '?', 'week')
        }
        switch (radioValue.value) {
            case 1:
                emit('update', 'week', '*', 'week')
                break
            case 2:
                emit('update', 'week', '?', 'week')
                break
            case 3:
                emit('update', 'week', cycleTotal.value, 'week')
                break
            case 4:
                emit('update', 'week', averageTotal.value, 'week')
                break
            case 5:
                emit('update', 'week', weekdayTotal.value, 'week')
                break
            case 6:
                if (checkboxList.value.length === 0) {
                    checkboxList.value.push(checkCopy.value[0])
                } else {
                    checkCopy.value = checkboxList.value
                }
                emit('update', 'week', checkboxString.value, 'week')
                break
        }
    }
</script>

<style lang="scss" scoped>
    .el-input-number--small, .el-select, .el-select--small {
        margin: 0 0.5rem;
    }

    .el-select, .el-select--small {
        width: 8rem;
    }

    .el-select.multiselect, .el-select--small.multiselect {
        width: 17.8rem;
    }
</style>